<p id="tips" style="display:none;"></p>

<form id="share" method="post">
    <input type="text" name="title" required='required' placeHolder="title"><br>
    <input type="text" name="description" required='required' placeHolder="description"><br>
    <!-- file -->
    <input type="file" id="uploadFile"/>

    <input type="submit" value="发表">
</form>

<div class="form-group col-sm-6 col-md-3 preview"></div>